Thread Subject:

Error starting desktop

i have matlab v 7.1
and when i want to start it
the message appear Error starting desktop AND

com.mathworks.mwswing.desk.DTnestingContainerSTreeState.findSubTree(DT
nestingContainer.java1840)
com.mathworks.mwswing.desk.DTnestingContainer.......(DTnestingContaine
r.java765)
com.mathworks.mwswing.desk.DTnestingContainer.........
(DTnestingContainer.java135)..........................................
..............

.................

...................
...................
java.awt.EventQueue...................................................
..................

I just had the same problem. Prior to it happening, the command entry
window had "dissappeared", either by human error or on its own. So we
had to restart Matlab, and the problem you describe began. Have you
found a way out of it?

pop wrote:
> i have matlab v 7.1
> and when i want to start it
> the message appear Error starting desktop AND
>
> com.mathworks.mwswing.desk.DTnestingContainerSTreeState.findSubTree(DT
> nestingContainer.java1840)
> com.mathworks.mwswing.desk.DTnestingContainer.......(DTnestingContaine
> r.java765)
> com.mathworks.mwswing.desk.DTnestingContainer.........
> (DTnestingContainer.java135)..........................................
> ..............
>
> .................
>
> ...................
> ...................
> java.awt.EventQueue...................................................
> ..................

ricksher wrote:
>
>
> I just had the same problem. Prior to it happening, the command
> entry
> window had "dissappeared", either by human error or on its own. So
> we
> had to restart Matlab, and the problem you describe began. Have
> you
> found a way out of it?
>
> pop wrote:
>> i have matlab v 7.1
>> and when i want to start it
>> the message appear Error starting desktop AND
>>
>>
>
com.mathworks.mwswing.desk.DTnestingContainerSTreeState.findSubTree(
> DT
>> nestingContainer.java1840)
>>
>
com.mathworks.mwswing.desk.DTnestingContainer.......(DTnestingContai
> ne
>> r.java765)
>> com.mathworks.mwswing.desk.DTnestingContainer.........
>>
>
(DTnestingContainer.java135)........................................
> ..
>> ..............
>>
>> .................
>>
>> ...................
>> ...................
>>
>
java.awt.EventQueue.................................................
> ..
>> ..................
>
>

same problem. pls help me somebody . re in stalling dint help.

I have the same problem. Can you pls advice?

Thanks

 

pop wrote:
>
>
> i have matlab v 7.1
> and when i want to start it
> the message appear Error starting desktop AND
>
>
com.mathworks.mwswing.desk.DTnestingContainerSTreeState.findSubTree(
> DT
> nestingContainer.java1840)
>
com.mathworks.mwswing.desk.DTnestingContainer.......(DTnestingContai
> ne
> r.java765)
> com.mathworks.mwswing.desk.DTnestingContainer.........
>
(DTnestingContainer.java135)........................................
> ..
> ..............
>
> .................
>
> ...................
> ...................
>
java.awt.EventQueue.................................................
> ..
> ..................

Pls help, I am having the same problem.

pop <c.popinou1@caramail.com> wrote in message <ef55e44.-1@webcrossing.raydaftYaTP>...
> i have matlab v 7.1
> and when i want to start it
> the message appear Error starting desktop AND
>
> com.mathworks.mwswing.desk.DTnestingContainerSTreeState.findSubTree(DT
> nestingContainer.java1840)
> com.mathworks.mwswing.desk.DTnestingContainer.......(DTnestingContaine
> r.java765)
> com.mathworks.mwswing.desk.DTnestingContainer.........
> (DTnestingContainer.java135)..........................................
> ..............
>
> .................
>
> ...................
> ...................
> java.awt.EventQueue...................................................
> ..................

pop <c.popinou1@caramail.com> wrote in message <ef55e44.-
1@webcrossing.raydaftYaTP>...
> i have matlab v 7.1
> and when i want to start it
> the message appear Error starting desktop AND
>
>
com.mathworks.mwswing.desk.DTnestingContainerSTreeState.fin
dSubTree(DT
> nestingContainer.java1840)
> com.mathworks.mwswing.desk.DTnestingContainer.......
(DTnestingContaine
> r.java765)
> com.mathworks.mwswing.desk.DTnestingContainer.........
>
(DTnestingContainer.java135)...............................
...........
> ..............
>
> .................
>
> ...................
> ...................
>
java.awt.EventQueue........................................
...........
> ..................

I have the same problem.. disaster.. any ideas?

"Kenneth " <plytime1@gmail.com> wrote in message
<f8pufc$dua$1@fred.mathworks.com>...
> Pls help, I am having the same problem.
>
> pop <c.popinou1@caramail.com> wrote in message <ef55e44.-
1@webcrossing.raydaftYaTP>...
> > i have matlab v 7.1
> > and when i want to start it
> > the message appear Error starting desktop AND
> >
> >
com.mathworks.mwswing.desk.DTnestingContainerSTreeState.fin
dSubTree(DT
> > nestingContainer.java1840)
> > com.mathworks.mwswing.desk.DTnestingContainer.......
(DTnestingContaine
> > r.java765)
> > com.mathworks.mwswing.desk.DTnestingContainer.........
> >
(DTnestingContainer.java135)...............................
...........
> > ..............
> >
> > .................
> >
> > ...................
> > ...................
> >
java.awt.EventQueue........................................
...........
> > ..................
>
 checked the support page, there is a fix, that you have
to buy or a workaround, below is copy and paste of what
they say

Summary
Startup exception sometimes appears for MATLAB

Description

Upon starting MATLAB, a dialog box sometimes appears
displaying the following error message:

java.lang.NullPointerException
at
com.mathworks.mwswing.desk.DTNestingContainer$TreeState.fin
dSubTree(DTNestingContainer.java:1840)
at
com.mathworks.mwswing.desk.DTNestingContainer.getPreviousLo
cation(DTNestingContainer.java:765)
. . .
MATLAB then exits.

This occurs if during the previous MATLAB session you
closed or undocked all the tools within the main desktop
frame, including the Command Window, and then exited
MATLAB.


Fix
This bug was fixed as of R2006a.

If you have a current subscription to MathWorks Software
Maintenance Service (SMS), you can download product
updates. If not, learn more about MathWorks SMS.

Workaround
If you are using a previous version, please read the
following:

Delete the file MATLABDesktop.xml from the MATLAB
preferences directory (the directory returned when you run
prefdir). To avoid recurrence, keep one tool open in the
desktop before exiting MATLAB.

help me...
i have a same problem too..
when i open MATLAB 71, I get an error message saying the
following:

Error Starting Desktop
com.mathworks.mwswing.desk.DTNestingContainer$TreeState.find
SubTree(DTNestingContainer.java:1840)
com.mathworks.mwswing.desk.DTNestingContainer.getPreviousLoc
ation(DTNestingContainer.java:765)
com.mathworks.mwswing.desk.DTNestingContainer.add
(DTNestingContainer.java:135)
com.mathworks.mwswing.desk.DTMultipleClientFrame.addClient
(DTMultipleClientFrame.java:298)
com.mathworks.mwswing.desk.Desktop.setClientShowing
(Desktop.java:3856)
com.mathworks.mwswing.desk.Desktop.setClientShowing
(Desktop.java:3672)
com.mathworks.mwswing.desk.Desktop.showClientWithoutActivati
ngFrame(Desktop.java:3943)
com.mathworks.mde.desk.MLDesktop.access$300
(MLDesktop.java:42)
com.mathworks.mde.desk.MLDesktop$2.run(MLDesktop.java:329)
java.awt.event.InvocationEvent.dispatch(Unknown Source)
java.awt.EventQueue.dispatchEvent(Unknown SOurce)
java.awt.EventDispatchThread.pumpOneEventForHierarchy
(Unknown Source)
java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown
Source)
java.awt.EventDispatchThread.pumpEvents(Unknown Source)
java.awt.EventDispatchThread.pumpEvents(Unknown Source)
java.awt.EventDispatchThread.run(Unknown Source)

it think its because we closed workspace, history, and
current directory one by one from File menu (not Exit
directly).
but, i don't know how to repair that...
help me too, plizzz...
b'coz i need it to finishing my final project...


pop <c.popinou1@caramail.com> wrote in message <ef55e44.-
1@webcrossing.raydaftYaTP>...
> i have matlab v 7.1
> and when i want to start it
> the message appear Error starting desktop AND
>
>
com.mathworks.mwswing.desk.DTnestingContainerSTreeState.find
SubTree(DT
> nestingContainer.java1840)
> com.mathworks.mwswing.desk.DTnestingContainer.......
(DTnestingContaine
> r.java765)
> com.mathworks.mwswing.desk.DTnestingContainer.........
>
(DTnestingContainer.java135)................................
..........
> ..............
>
> .................
>
> ...................
> ...................
>
java.awt.EventQueue.........................................
..........
> ..................

"Novina Soraya" <nov_inspired@yahoo.com> wrote in message
<ftn5o6$3d7$1@fred.mathworks.com>...
> help me...
> i have a same problem too..
> when i open MATLAB 71, I get an error message saying the
> following:
>
> Error Starting Desktop
>
com.mathworks.mwswing.desk.DTNestingContainer$TreeState.find
> SubTree(DTNestingContainer.java:1840)
>
com.mathworks.mwswing.desk.DTNestingContainer.getPreviousLoc
> ation(DTNestingContainer.java:765)
> com.mathworks.mwswing.desk.DTNestingContainer.add
> (DTNestingContainer.java:135)
> com.mathworks.mwswing.desk.DTMultipleClientFrame.addClient
> (DTMultipleClientFrame.java:298)
> com.mathworks.mwswing.desk.Desktop.setClientShowing
> (Desktop.java:3856)
> com.mathworks.mwswing.desk.Desktop.setClientShowing
> (Desktop.java:3672)
>
com.mathworks.mwswing.desk.Desktop.showClientWithoutActivati
> ngFrame(Desktop.java:3943)
> com.mathworks.mde.desk.MLDesktop.access$300
> (MLDesktop.java:42)
> com.mathworks.mde.desk.MLDesktop$2.run(MLDesktop.java:329)
> java.awt.event.InvocationEvent.dispatch(Unknown Source)
> java.awt.EventQueue.dispatchEvent(Unknown SOurce)
> java.awt.EventDispatchThread.pumpOneEventForHierarchy
> (Unknown Source)
>
java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown
> Source)
> java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> java.awt.EventDispatchThread.run(Unknown Source)
>
> it think its because we closed workspace, history, and
> current directory one by one from File menu (not Exit
> directly).
> but, i don't know how to repair that...
> help me too, plizzz...
> b'coz i need it to finishing my final project...
>
>
> pop <c.popinou1@caramail.com> wrote in message <ef55e44.-
> 1@webcrossing.raydaftYaTP>...
> > i have matlab v 7.1
> > and when i want to start it
> > the message appear Error starting desktop AND
> >
> >
>
com.mathworks.mwswing.desk.DTnestingContainerSTreeState.find
> SubTree(DT
> > nestingContainer.java1840)
> > com.mathworks.mwswing.desk.DTnestingContainer.......
> (DTnestingContaine
> > r.java765)
> > com.mathworks.mwswing.desk.DTnestingContainer.........
> >
>
(DTnestingContainer.java135)................................
> ..........
> > ..............
> >
> > .................
> >
> > ...................
> > ...................
> >
>
java.awt.EventQueue.........................................
> ..........
> > ..................
>


I have the same problem like everybody who had written it
here before. During the instalation my computer said to me,
that I don't have .NET framework, so I installed it and
that after I have to reinstall matlab. I did it, but the
result is still same :-(

//////////////// solution //////////////////////////////


This is the end of the struggle. No need to reinstall.

Windows:

Look for a file called MATLABDesktop.xml
Delete it.
Done.

Mac OS X

Use The Start Matlab Setting application and select terminal (or X11) on the left menu.
Enable shell start (no Desktop) and remove the JVM flag.
Start.
Once you get the matlab prompt type: prefdir
the shell will show you something like:
/Users/nameuser/.matlab/R2008a
go there and delete MATLABDesktop.xml
Done.

Cheers Bro.

I too had a hard time trying to fix it. First, I tried the Work Around given here, i.e., set a new environment variable MATLAB _RESERVE_LO to a value 0 which didn't work and then tried restoring my desktop visuals which fixed it. But then again, I'm not sure what fixed it...is it the new environment variable or restoring my desktop.

How does one restore desktop visuals?

"Amarnath " <rainingjupiters_76@yahoo.com> wrote in message <grrtnt$eei$1@fred.mathworks.com>...
> I too had a hard time trying to fix it. First, I tried the Work Around given here, i.e., set a new environment variable MATLAB _RESERVE_LO to a value 0 which didn't work and then tried restoring my desktop visuals which fixed it. But then again, I'm not sure what fixed it...is it the new environment variable or restoring my desktop.

I have the same problem as everyone on this list: I have installed Matlab R2007a on a Windows 7, and whenever I try to open Matlab, I get the error message:
"Error Starting Desktop" java.lang.NullPointerException ... etc. The only way I can open Matlab is right after installation, by checking the "Start Matlab" box on the installer.
I tried doing what you suggested: looking for a file called MatlabDesktop.xml and deleting it. However, I cannot find this file on my computer. I have checked my Matlab preferences folder (by typing "prefdir" in my Matlab session), but there is no file called "MatlabDesktop.xml" in that folder. There is a PICS file called "matlab" and a text file called "MLintDefaultSettings".
There is an XML file called "shortcuts". I tried deleting that file, but 1) this didn't solve the problem at all; I got the same error message, and 2) after I got this error message, the "shortcuts.xml" file reappeared in my Matlab preferences folder.
What should I do? Thank you very much for your consideration.

Yours Sincerely,
Maxim Pinkovskiy



"stefano " <s@mem.it> wrote in message <gg5v3a$e3e$1@fred.mathworks.com>...
> //////////////// solution //////////////////////////////
>
>
> This is the end of the struggle. No need to reinstall.
>
> Windows:
>
> Look for a file called MATLABDesktop.xml
> Delete it.
> Done.
>
> Mac OS X
>
> Use The Start Matlab Setting application and select terminal (or X11) on the left menu.
> Enable shell start (no Desktop) and remove the JVM flag.
> Start.
> Once you get the matlab prompt type: prefdir
> the shell will show you something like:
> /Users/nameuser/.matlab/R2008a
> go there and delete MATLABDesktop.xml
> Done.
>
> Cheers Bro.
>

"Maxim " <maxim09@mit.edu> wrote in message <hir9vs$o47$1@fred.mathworks.com>...
> I have the same problem as everyone on this list: I have installed Matlab R2007a on a Windows 7, and whenever I try to open Matlab, I get the error message:
> "Error Starting Desktop" java.lang.NullPointerException ... etc. The only way I can open Matlab is right after installation, by checking the "Start Matlab" box on the installer.
> I tried doing what you suggested: looking for a file called MatlabDesktop.xml and deleting it. However, I cannot find this file on my computer. I have checked my Matlab preferences folder (by typing "prefdir" in my Matlab session), but there is no file called "MatlabDesktop.xml" in that folder. There is a PICS file called "matlab" and a text file called "MLintDefaultSettings".
> There is an XML file called "shortcuts". I tried deleting that file, but 1) this didn't solve the problem at all; I got the same error message, and 2) after I got this error message, the "shortcuts.xml" file reappeared in my Matlab preferences folder.
> What should I do? Thank you very much for your consideration.
>
> Yours Sincerely,
> Maxim Pinkovskiy

a hint:

http://www.mathworks.com/support/sysreq/previous_releases.html

us

CHANGE YOUR THEME TO WINDOWS DEFAULT,(right click on desktop).
THEN IT WILL BE FINE.
All the best

"us " <us@neurol.unizh.ch> wrote in message <his4sf$91q$1@fred.mathworks.com>...
> "Maxim " <maxim09@mit.edu> wrote in message <hir9vs$o47$1@fred.mathworks.com>...
> > I have the same problem as everyone on this list: I have installed Matlab R2007a on a Windows 7, and whenever I try to open Matlab, I get the error message:
> > "Error Starting Desktop" java.lang.NullPointerException ... etc. The only way I can open Matlab is right after installation, by checking the "Start Matlab" box on the installer.
> > I tried doing what you suggested: looking for a file called MatlabDesktop.xml and deleting it. However, I cannot find this file on my computer. I have checked my Matlab preferences folder (by typing "prefdir" in my Matlab session), but there is no file called "MatlabDesktop.xml" in that folder. There is a PICS file called "matlab" and a text file called "MLintDefaultSettings".
> > There is an XML file called "shortcuts". I tried deleting that file, but 1) this didn't solve the problem at all; I got the same error message, and 2) after I got this error message, the "shortcuts.xml" file reappeared in my Matlab preferences folder.
> > What should I do? Thank you very much for your consideration.
> >
> > Yours Sincerely,
> > Maxim Pinkovskiy
>
> a hint:
>
> http://www.mathworks.com/support/sysreq/previous_releases.html
>
> us

CHANGE YOUR THEME TO WINDOWS DEFAULT,(right click on desktop).
THEN IT WILL BE FINE.
All the best

"us " <us@neurol.unizh.ch> wrote in message <his4sf$91q$1@fred.mathworks.com>...
> "Maxim " <maxim09@mit.edu> wrote in message <hir9vs$o47$1@fred.mathworks.com>...
> > I have the same problem as everyone on this list: I have installed Matlab R2007a on a Windows 7, and whenever I try to open Matlab, I get the error message:
> > "Error Starting Desktop" java.lang.NullPointerException ... etc. The only way I can open Matlab is right after installation, by checking the "Start Matlab" box on the installer.
> > I tried doing what you suggested: looking for a file called MatlabDesktop.xml and deleting it. However, I cannot find this file on my computer. I have checked my Matlab preferences folder (by typing "prefdir" in my Matlab session), but there is no file called "MatlabDesktop.xml" in that folder. There is a PICS file called "matlab" and a text file called "MLintDefaultSettings".
> > There is an XML file called "shortcuts". I tried deleting that file, but 1) this didn't solve the problem at all; I got the same error message, and 2) after I got this error message, the "shortcuts.xml" file reappeared in my Matlab preferences folder.
> > What should I do? Thank you very much for your consideration.
> >
> > Yours Sincerely,
> > Maxim Pinkovskiy
>
> a hint:
>
> http://www.mathworks.com/support/sysreq/previous_releases.html
>
> us

This problem arises when you try to use version 7.1 on Windows 7 OS.

If you are attempting to run 7.1 on Windows 7 a quick work around is to:

1. Right-click on the desktop.
2. select personalise.
3. scroll till you can see basic and high contrast themes.
4. select the theme "Windows Classic".
5. Run Matlab.

The problem, as far as i can tell from the error messages I have gotten, is that Windows 7 does not support the Java files that Matlab uses in its GUI and as such won't start. By switching to the Windows Classic theme it enables these GUI objects to be loaded.

Matlab installs it's own version of Java which is outdated and incompatible with newer themes. Simply follow the instructions at the following link to fool matlab into accepting a newer version of Java.

http://social.technet.microsoft.com/Forums/en-US/w7itproappcompat/thread/4dba5d57-3127-48f3-9461-eb1ef5d7c70e

I have windows 7 and 7.1 matlab version.
I had the same problem described but even when I did this:
Go to <Matlab-installation-dir>\sys\java\jre\win32 you will find a folder named jre1.5.0_07 (or a similar version). Rename it to Original_<whatever was originally there>
Go to C:\Program Files\Java you will find file named jre6. Copy it to <Matlab-installation-dir>\sys\java\jre\win32 and rename it to <original jre directory name>

or when I change my desktop to windows classic it goes on giving the error. what can I do?

Dear All,

I've got the solution.....

1) Install latest version of the JDK compiler on your computer.
2) Copy the "jre1.6.0_13" folder from "C:\Program Files\Java" directory.
3) Goto the "C:\MATLAB7\sys\java\jre\win32" folder.
4) Paste the "jre1.6.0_13" folder to that directory.
5) Rename the existing "jre1.4.2" folder to "_jre1.4.2".
6) Rename the "jre1.6.0_13" folder to "jre1.4.2".
7) Now you can delete "_jre1.4.2" folder.
8) Run MATLAB.EXE

Enjoy and work with Matlab7 in Windows 7
Arindam

"Arindam Mukherjee" <arindam26509580@gmail.com> wrote in message <i6mrup$ba3$1@fred.mathworks.com>...
> Dear All,
>
> I've got the solution.....
>
> 1) Install latest version of the JDK compiler on your computer.
> 2) Copy the "jre1.6.0_13" folder from "C:\Program Files\Java" directory.
> 3) Goto the "C:\MATLAB7\sys\java\jre\win32" folder.
> 4) Paste the "jre1.6.0_13" folder to that directory.
> 5) Rename the existing "jre1.4.2" folder to "_jre1.4.2".
> 6) Rename the "jre1.6.0_13" folder to "jre1.4.2".
> 7) Now you can delete "_jre1.4.2" folder.
> 8) Run MATLAB.EXE

>
> Enjoy and work with Matlab7 in Windows 7
> Arindam



This fix does allow you to run Matlab, however I have noticed there are certain GUI functions that still do not function properly while using a Windows 7 Aero theme as opposed to Windows Classic. For example, the function "inputdlg" is a simple way to input text to a variable, but in the Windows 7 Aero theme environment the text box field is not shown. Any ideas on how to bring this into view??

Thanks Dude...ur suggestion worked for me too.


"Arindam Mukherjee" wrote in message <i6mrup$ba3$1@fred.mathworks.com>...
> Dear All,
>
> I've got the solution.....
>
> 1) Install latest version of the JDK compiler on your computer.
> 2) Copy the "jre1.6.0_13" folder from "C:\Program Files\Java" directory.
> 3) Goto the "C:\MATLAB7\sys\java\jre\win32" folder.
> 4) Paste the "jre1.6.0_13" folder to that directory.
> 5) Rename the existing "jre1.4.2" folder to "_jre1.4.2".
> 6) Rename the "jre1.6.0_13" folder to "jre1.4.2".
> 7) Now you can delete "_jre1.4.2" folder.
> 8) Run MATLAB.EXE
>
> Enjoy and work with Matlab7 in Windows 7
> Arindam

pop <c.popinou1@caramail.com> wrote in message <ef55e44.-1@webcrossing.raydaftYaTP>...
> i have matlab v 7.1
> and when i want to start it
> the message appear Error starting desktop AND
>
> com.mathworks.mwswing.desk.DTnestingContainerSTreeState.findSubTree(DT
> nestingContainer.java1840)
> com.mathworks.mwswing.desk.DTnestingContainer.......(DTnestingContaine
> r.java765)
> com.mathworks.mwswing.desk.DTnestingContainer.........
> (DTnestingContainer.java135)..........................................
> ..............
>
> .................
>
> ...................
> ...................
> java.awt.EventQueue...................................................
> ..................

Looks like the default location of the MATLABDesktop.xml is in your C:\users\%username%\AppData\Roaming\MathWorks\MATLAB\R14SP3\ folder.

Thank you, Thank you,Thank you!!! Changing the theme worked!!!

"Chao " <c.suo@unsw.edu.au> wrote in message <hm3cev$au2$1@fred.mathworks.com>...
> CHANGE YOUR THEME TO WINDOWS DEFAULT,(right click on desktop).
> THEN IT WILL BE FINE.
> All the best
>
> "us " <us@neurol.unizh.ch> wrote in message <his4sf$91q$1@fred.mathworks.com>...
> > "Maxim " <maxim09@mit.edu> wrote in message <hir9vs$o47$1@fred.mathworks.com>...
> > > I have the same problem as everyone on this list: I have installed Matlab R2007a on a Windows 7, and whenever I try to open Matlab, I get the error message:
> > > "Error Starting Desktop" java.lang.NullPointerException ... etc. The only way I can open Matlab is right after installation, by checking the "Start Matlab" box on the installer.
> > > I tried doing what you suggested: looking for a file called MatlabDesktop.xml and deleting it. However, I cannot find this file on my computer. I have checked my Matlab preferences folder (by typing "prefdir" in my Matlab session), but there is no file called "MatlabDesktop.xml" in that folder. There is a PICS file called "matlab" and a text file called "MLintDefaultSettings".
> > > There is an XML file called "shortcuts". I tried deleting that file, but 1) this didn't solve the problem at all; I got the same error message, and 2) after I got this error message, the "shortcuts.xml" file reappeared in my Matlab preferences folder.
> > > What should I do? Thank you very much for your consideration.
> > >
> > > Yours Sincerely,
> > > Maxim Pinkovskiy
> >
> > a hint:
> >
> > http://www.mathworks.com/support/sysreq/previous_releases.html
> >
> > us

Hey guys,i got a fix,just right click on teh app,choose properties,select the compatibility tab...it's probably showing operating for windows XP...don't change it to windows 7,choose windows vista...tada,problem solved
Good luck

pop <c.popinou1@caramail.com> wrote in message <ef55e44.-1@webcrossing.raydaftYaTP>...
> i have matlab v 7.1
> and when i want to start it
> the message appear Error starting desktop AND
>
> com.mathworks.mwswing.desk.DTnestingContainerSTreeState.findSubTree(DT
> nestingContainer.java1840)
> com.mathworks.mwswing.desk.DTnestingContainer.......(DTnestingContaine
> r.java765)
> com.mathworks.mwswing.desk.DTnestingContainer.........
> (DTnestingContainer.java135)..........................................
> ..............
>
> .................
>
> ...................
> ...................
> java.awt.EventQueue...................................................
> ..................

thanks Sebastian Pinski.... it solved the issue.....
i wonder.. hw u got the answer...!!!

if u cud share the source.. !?
thnx again buddy....

"Georges" wrote in message <jikbtq$9oo$1@newscl01ah.mathworks.com>...
> Hey guys,i got a fix,just right click on teh app,choose properties,select the compatibility tab...it's probably showing operating for windows XP...don't change it to windows 7,choose windows vista...tada,problem solved
> Good luck
>
> pop <c.popinou1@caramail.com> wrote in message <ef55e44.-1@webcrossing.raydaftYaTP>...
> > i have matlab v 7.1
> > and when i want to start it
> > the message appear Error starting desktop AND
> >
> > com.mathworks.mwswing.desk.DTnestingContainerSTreeState.findSubTree(DT
> > nestingContainer.java1840)
> > com.mathworks.mwswing.desk.DTnestingContainer.......(DTnestingContaine
> > r.java765)
> > com.mathworks.mwswing.desk.DTnestingContainer.........
> > (DTnestingContainer.java135)..........................................
> > ..............
> >
> > .................
> >
> > ...................
> > ...................
> > java.awt.EventQueue...................................................
> > ..................
I was facing the same problem. The solution worked. This is the best answer.
Right click MATLAB app. Properties, go to compatibility and change operating to windows vista , sp2
It worked fro me
Thanks